package org.example.mapper;


import org.apache.ibatis.annotations.*;
import org.example.pojo.Dept;

import java.util.List;

@Mapper
public interface DeptMapper {
//    查询所有部门数据
    @Select("select id,name,create_time,update_time from dept order by update_time desc")
    List<Dept> findAll();

//    根据id删除部门
    @Delete("delete from dept where id = #{id}")
    void deleteById(Integer id);

//    新增部门
    @Insert("insert into dept(name,create_time,update_time) values(#{name},#{createTime},#{updateTime})")
    void insert(Dept dept);

//    根据id查询部门
    @Select("select id,name,create_time,update_time from dept where id = #{id}")
    Dept getById(Integer id);

//    更新部门
    @Update("update dept set name = #{name},update_time = #{updateTime} where id = #{id}")
    void update(Dept dept);

    @Select("select count(*) from emp where dept_id = #{id}")
    Integer getempBydeptid (Integer id);
}
